7Q0D | pdb_00007q0d

Human carbonic anhydrase I in complex with Methyl 2-(benzenesulfonyl)-4-chloro-5-sulfamoylbenzoate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1CAB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291	Crystallization buffer: 0.1 M Tris-HCl (pH 8.5), 0.2 M ammonium acetate and 24% PEG4000

Crystal Properties
Matthews coefficient	Solvent content
2.37	48.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.039	α = 90
b = 73.235	β = 90
c = 120.473	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M		2015-06-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	1.03320	PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.243	62.039	98.3	0.075	0.083	0.022	22	12.9	151876	151876

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.243	1.31	89.6		0.194	0.194	0.216	0.063	3.8	11

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1CAB	1.24	55.16	136749	15031	98.28	0.1335	0.1309	0.1313	0.1577	0.1581	RANDOM	17.893

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.06			0.02		-0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.229
r_sphericity_free	28.336
r_dihedral_angle_4_deg	21
r_sphericity_bonded	20.357
r_dihedral_angle_3_deg	12.775
r_rigid_bond_restr	9.393
r_dihedral_angle_1_deg	6.968
r_angle_refined_deg	2.42
r_chiral_restr	0.171
r_bond_refined_d	0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.229
r_sphericity_free	28.336
r_dihedral_angle_4_deg	21
r_sphericity_bonded	20.357
r_dihedral_angle_3_deg	12.775
r_rigid_bond_restr	9.393
r_dihedral_angle_1_deg	6.968
r_angle_refined_deg	2.42
r_chiral_restr	0.171
r_bond_refined_d	0.03
r_gen_planes_refined	0.017

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4018
Nucleic Acid Atoms
Solvent Atoms	869
Heterogen Atoms	234

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
MOLREP	phasing
Coot	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.